【摘要】 探讨莆田市主要饮用水源地——东圳水库水体中常见有机毒物残留情况及对环境的影响.以水环境中常见的25种有机农药为研究对象,在东圳水库库区不同位置进行设点采样,采用液液萃取法对水样进行前处理,用气相色谱法分别对不同种类的有机毒物进行定性定量分析.结果表明:液液萃取法对水样进行前处理的效果能达到检测的要求,目标有机毒物的回收率为70.0%~125.0%,检出限为0.01~0.15μg·L-1,标准曲线的线性相关系数为0.990 5~0.999 6,建立了快速、灵敏、准确的水体中痕量有机毒物的分析方法 ,满足痕量分析的要求.更多还原

【Abstract】 25 common organic toxicants of different sampling point in Dongzhen reservoir were used to discuss the commom organic toxicants residue and the impact on the water environment. Liquid liquid extraction method was used to pretreat water samples and different types of organic toxicants were analyzed by gas chromatography. The results showed that: pretreated water samples by using liquid liquid extraction can reach the detection limit, the recovery rate of object organic toxicants was 70.0% to 125.0%, the detection limit was 0.01 μg·L-1to0.15 g·L-1, and the correlation coefficient was 0.990 5 to 0.999 6. A rapid, sensitive and accurate method was developed to detect the trace organic toxicant pollutions in the study.更多还原